Vital statistic (5)

I believe the answer is:
waist
(Other definitions for waist that I've seen before include "Midriff" , "Ever-expanding middle" , "part of frame" , "Middle of trunk" , "Central part of body" .)
I believe the answer is:
waist
(Other definitions for waist that I've seen before include "Midriff" , "Ever-expanding middle" , "part of frame" , "Middle of trunk" , "Central part of body" .)